do i know any devs at mozilla/chrome/IE who can talk to me about perf characteristics around CSS's `insertRule(..)` and `deleteRule(..)`?
3
1
Replying to @getifyX
@getify In Gecko they'll force us to rerun all cascading + selector matching (slow!), but should coalesce well. (Better if scoped style.)

Dec 13, 2014 · 5:44 AM UTC

2
Replying to @davidbaron
@davidbaron my goal is to update/replace rules, not create new ones. sounds like there's no way to "tell" gecko that?
1
@getify Do they have the same selectors? If so, can you manipulate the declaration instead? If not, we have to do all that work.
2
more replies
Replying to @davidbaron
@davidbaron @getify so that's what you're looking for (was thinking too low level) IE does the same, possibly subtle differences.